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UNITED srefrns rnrnN'r orrron EDWIN TUCKER, OF BUCYRS, OHIO.

Y MACHINERY FOR TURNING IRREGULAR FORMS.

Specification of `Letters Patent` No. 3,805, dated October 24, 1844.

T 0 all whom t may concern y Be it known that I, EDWIN TUCKER, of the town of Bucyrus, in the county ofCrawford and Stateof Ohio,.have invented a new and useful Machine for Turning, called Tuckers Improved` `'I urning-Lathe for turning irregular bodies, which is described as follows, reference being had to the anneNed drawingsof the same, making part of this specification.

. Figure l is a `left-end elevation of the whole machine. Fig is a front-side longitudinal elevation. Fig. 3 is a top view. Fig. 4 is a view of the inner side of the back top side plate of the main frame. Fig. 5 is a top view of the main frame with the carriage tilting beam and arms cone pulleys and drums removed therefrom. Fig. 6 is a side view of the front top side` plate` of the main frame showing the `construction and operation of the lever. Fig. 7 is a side view of the metal frame suspended over the can riage. Fig. 8 is a top view of the same metal frame. Fig. 9 is a side view of the clamps. Figl() is an edge view ofone of the `plates of cutters.` Fig. 11 is a front view of ditto. `Fig. 12 is a perspective view of the whole machine. i

I construct strong frame of iron or other suitable material of a rectangular form 4 and of suitable size tocontain the several parts hereafter described.

` peiling power being applied by band tothe inner or fast pulley and taken away by shifting the band to the loose pulley. Upon said shaft B is placeda drum C. On the left end ofthe shaft isplaced a cone pulley D. An-

` other cone pulley F isplaced on a horizontal shaft in a small additional frame No. 2 9 of the main frame. Motion `is communicatedto the larger cone by means of a band E running over it and the smaller cone D.

Upright posts M M are let into the top of the main frame and secured by keys C so that they can be raised or lowered at pleasure. At the upper end of the left post M Ii a slit 9 or 10`inches long and l inch wide is made. A metal band wheel II is secured to this post by a horizontal shaft. Motion is given to" said wheel H by a band G running overit andthe cone F. Inside of post K M and on the shaft sustaining the band wheel i H are suspended two wooden parallel arms J J placed apart'so as to leave a spacebetween them and fastened togethenat their ends, in whichspace the cog wheels I I and a `are placed. These arms vibrate on the aXle of the band wheel H. A tilting beam L is Iconnected at the 4left end with the arms J lby means of a hanging post p p mortilsed iinto the tilting beam and the The isaid hanging post has a slit about 2g inches long and 195 inches wide, or thereaboiit.

v The tilting `beam L at the right end is connected with the post M by means of an arm e mortised into the tilting" beam and `ruiming into the slit in saidlpost and there fastened by an iron pin on the same center `with the horizontal shaft of the fbandwheel II. For the purpose of supporting the in`. 1ner end of the shaft on which the band wheel I-I and arms J are suspended a strong iron brace is fastened to the inside of the post K and bent and extended upward so as" "to receive the end of said shaft, as shown at R. On the same shaft and revolvingv be-` tween the arms J is fastened a fine geared metal cog wheel a. The aforesaid cog wheels I I in the arms J work intothe said cog wheel a and turn on horizontalaxles passing through the vibrating arms J. A vertical slit f is cut longitudinally throii "h,

gthe tiltingbeam L (see Fig. 3) to admit t e screw rf of the crooked arm N to moveV back and forth therein for the proper adjiistment of the arm N.

The crooked arm N is attached to the tilting beam by means of the screw g running up throngh the slit` f and kept in its place by a thumb nnt 0. l The back end of the said crooked arm on the inner side has upon it a revolving chuck it arranged on the same horizontal center with the shaft of the cog wheelI on which there is formed a chnckb for turning the pattern. The said chuck ,7L- and b are the points on which the pattern is placed which governs the work performed. The front end olf the crooked arm N has passingthrough it a crank screw" Q on the same horizontal line or center with the shaft` of the cog wheel I on which there is formed a chnck The crank screw Q, and the chuck Z) form the points o-n which the block or timber is placed upon which the work is to be performed, so constructed as to give motion to the block. In the frame are mortised postsvl j in which is placed a hori zontal screw U for moving the carriage fw, said screw having on its left end a metal band wheel T turned by la band S leading to the cone wheel F.

7c 7c represent the ways on which the carriage moves. The carriage w moves over the ways on rollers let into the carriage in the usual way. The screw rod U passes through the carriage. Head blocks or posts Z are placed on the carriage w to receive the mandril of a circular saw Y turned by a pulley m and by a brand V leading to the drum. C.

Directly opposite the saw is placed an ad` justable post o. This post passes through the carriage and is kept at the desired height by a screw passing through the carriage and a perpendicular slit in the post. Two arms project horizontally back from this post between which is placed a pattern wheel turning on a horizontal shaft passing through said arms. This shaft is placed directly over the center of the line formed by the chucks Z) and 7i. The pat tern wheel is placed opposite the saw and is setat an angle of about 10 degrees with the plane of the saw. A weight No. 22 is suspended from the front end of the arms J for the purpose of counteracting the tendency of the arms to be depressed at the back end and elevated at the front end by the action of the band wheel H and by the `cog wheel a and the weight of the pattern.

The pattern wheel rolls on its stationary axis by the motion of the pattern. Inequalities in the shape of the pattern as it gradually comes in contact with the pattern wheel causes the pattern to be elevated and depressed giving the same motion to the back ends of the arms J and the crooked arm N whereby the opposite ends of the arms J and the crooked arm N whereon the block or .timber to be turned revolves make the reverse motion. By this means the saw playing under the block or timber and the pattern wheel revolving over the pattern the saw is required to constantly give the block or timber the configuration of the pattern where it is in contact with the pattern wheel. On a line with the posts K and M a piece of timber of suitable thickness and of appropriate length is framed into the carriage on a level with the upper part of the carriage w.

A pair of iron clamps of convenient length in shape similar to a pair of dividers is at the vunited ends fastened to the piece of timber just described a few inches from the left side of the carriage with the points extending horizontally through the front side of the carriage. The clamps may be fastened by attaching metal ears to the piece of timber just described and heading into them the pin on which thelegs of the clamps turn one leg of the clamps pass over the iron screw rod U and the other under it. y

At the point of contact the inner sides of the legs are cut in form to receive a screw with thread to fit the screw rod so that when the legs of the clamps are closed they form a burr over the screw rod U; a steel spring is fastened to the under leg for the purpose of keeping the legs of the clamps apart. On the upper leg of the clamps outside the front o-f the carriage a spring catch is fastened with a shoulder placed at the proper distance on its left side fitting its lower leg for the purpose of holding the legs of the clamps together. The clamps are represented in Fig. 9 detached.

Before the propelling power is attached to the machine thecariage w is moved tothe right on the ways to the point where the saw will be just clear of the block or timber on which the work is to lbe performed and to the right of it. The clamps are closed upon the screw rod o and held in their place by the spring catch y The propelling power applied sets the wheel T and the screw rod 'v in motion. By the operation of the screw the clamps are forced slowly along the screw to the left taking the carriage fw on which the saw is located along with it. By this means the saw moves along the whole length ofk the block or timber with sufficient velocity to make it operate on every part of the surface of the block or timber.

Two perpendicular posts Q Q are set in the carriage on the left side and about 20% inches from the front of the carriage on a line parallel with the saw mandrel. Near the top of the post g, a shaft is fixed firmly on which a horizontal metal frame p is hung the left side being longer than the right side. In front the two sides extend an equal distance, shown by the letters P in Plate l and Figs. 2, 3 and 8 of Plate 2. Inside the said metal frame and on the same shaft is hung a metal cone containing two pulleys.

A metal pulley is fastened on the saw mandrel, a band passes over this pulley and the pulley 7' by which motion isv given to cone r shown by the letters 1 in Plate l and Figs. 2 and 3 of Plate 2. A metal shaft is inserted in the metal frame. `Within the metal frame close to its left side and on said shaft a metal pulley is fastened shown by the letters s s in Plate l. A band passes over the pulleys s and the cone r by which motion is given to the pulley s and the shaftV to which it is attached. On the left end of said shaft outside the metal frame p a steel smoothing wheel is screwed with aleft hand thread. The edge of the smoothing wheel must be made in file form with the teeth running diagonally across the edge and about lgth inch apart. The smoothing wheel is just back of the saw. It performs the office of smoothing the roughness left on the bloeit` or timber by the saw. To every rnachine there must be a variety of sinooth` ing Wheels t suit the inequalities in the shape of the praderas.-

ters t in Plate 1 and Figs. 42',l 3, 7 and 8 of Plate 2. At the" baek end of the longest arrn of the metal frame p a` small patternwheel 'f the same size and shape of t-he smoothing' wheel (except the sie ferm of the edge) ,is y

constant-ly resting upon the pattern, shown by the figures 21 in Figs 7 and 8 of Plate 2.

Mortises are cut` through` the right and left front legs of the rnain fraine. A sinall Inortise is cut through the middle legs.` A lever 2 is inserted through these mortises so that the right end fornaing a handle will extend beyond the right side of the frame.

through the inortise of therniddle front leg,

shown by the figures 2 in Plate 1 and Figs. 2, 3, 5, and 6 in Plate 2.

y Along the front top pieee inside the way la a groove is out, six inches fror'n the left end the grooVefr the space of two inches is extended baclr through the top piece. In this groove a r'od sufficient to fill the groove and in've in it freely is inserted but one inch shorter than thegroove. A pin is fastened horizontally in the rod so as to extend out through the Center of the enlarged part of the groove. On the right end of the rod a perpendicular tenant is cut and rounded on the under side. A mortise extending half way through the rod is cut on the under side of the rod fourteeninches from its right end andrunning orosswise on the rod. The rod is shown by the figures 24, in Figs. 5 and 6 of Plate 2. The pin is shown by the figures 2G of Fig. 5 Plate 2.

A perpendicular steel spring is fastened tothe under side of the front top side plate extending up through the plate into the Inertise under the rod. The plate is cut away so as to give about one inch play to the spring shown by the figures 25 in Fig. 6 Plate 2. y

At the right end of the groove directly under the end of the rod 24 a perpendicular square inortise iscut through the side plate, a postis rnortised into the lever with a pin holding it and giving it suihcient play. This post runs up through the `noortise in the side plate under the right end of the rod 24. A `notch is cut on the left side of `this post. This post is shown the figures as Figs. 5 ana e Piate a A aan pia@ of wood is fastened over the groove and rod to guard it from dust and other obstructions. The smoothing wheel 1s shown by thelet-u A inortise is cut on the under side of this thin plate where it cornes over the post 23' in: order to allow the post sufficient play. A weight of frein 10 to 12 pounds is attached to the lever 2 to counteract the g. pressure upon the opposite end.

An iron plate is attached to the lever 2 where it is bent outward and upward so as lto extend along the side of the top plate of the Inain frame.

A metal bent lever 33 cornposed of two arins at rightl angles with each other is hung by a pin on the side plate lof the frame. gthe otherv extends to the left and is then tunitedgby a pin to the upper end of the One arm extends upward,

iron plate 3 just described.

A perpendicular inortise is made in the l left end top plate of the rnain frainedirectly of the lever 2 plays.

Qover the left end of the lever 2 and extending into the mortise in which the left end In this mortise a post is placed which' is moved up `and down by the action of the lever shown by Fig. 4 in lPlate 1 and Figs. 1, 2, 4 and 6 of Plate 2. The lever is hung on a center pin passed A pulley with a flange 6 on each side is fastened` on the iron shaft B to the right of the cone and shown by the Fig. G in Plate 1 and Fig. 2Plate 2.

A girth 30 is framed into the side top `pieces of the inain frame below the top of lthe said side pieces, shown by the figures 3() in Figs; 3 and 5 of Plate 2.

An iron shaft is laid horizontally with ,the left end resting on the left end top :piece and the' right end lying across the lgirth 30 and extending beyond it. `This shape is so' inserted that it may be moved `back and forward, shown by the figure 9 in Figs. 3 and 5 of Plate 2. -The shaft is secured on the girth 30 by a cap.

'Iii

Aginetal band wheel is fastened on` the shaft 9 shown by figure 8 in Plate 1 and Figs. 1 and 5 of Plate 3. A band 7 passes over the pulley 6 and `the band wheel 8 by which motion` is given to the band wheel and to shaft 9, shown by the Fig. 7 of Plate 1 and Figs. 1 and 2 of Plate 2. A metal bevel cogwheel is fastened on the right end of the shaft 9 the cogs pointing to the right shown by figures 10`in Figs. 3 and 5 of Plate 2.

A flange is fastened on the shaft 9 to the right of the hub of the band wheel and forming a groove around the shaft between lao the band wheel and the flange. An iron plate is attached on the inner'` side of lever 2 opposite Ato iron plate 3. It is bent inward and upward so as to extend along the inner side of the front top side piece of the main frame. A metal button or rightangled plate composed of two arms at right angles with each other is hung by a lea pin below Athe center of the" inner side of the top `frontside plate of the .main frame. One arm of said right-angled plate extends upward the other extends horizontally to the left and is then united by a pin to the upper end of the bent iron plate just described shown by figure 5 of Plate Fig. 2.

A rod of iron marked 11 about one-half inch square iron is fastened by its end to the innery side of the back top side piece of the main frame opposite the flange or shaft 9 and extends forward through the groove between said flange and the hub of the band Vwheel 8 to the inner side of the front top piece of the main frame; it then turns to the right and extends to the upper end of the arm of the right-angled plate or button 4 to which it is attached by a pin, shown at No. 45 in Fig. 3 Plate 2. A hori- Zontal groove is cut on the inner side of the back top sid-e piece of the main frame. The right end of this groove extends to the right-end top piece of the main frame. A mortise is cut at the right end of the groove in the side and end piece of the main frame. A rod 18 is inserted in this groove having 2f inch of the breadth of therod out. A small notch is cut on the inner side of the rod. A steel spring 20 is fastened to the inner side of the right-end top piece of the frame with the other end inserted in the Vaforesaid notch in the rod. This spring pushes the rod to the left as far as the groove will admit. rPhe right end of the rod goes into the mortise when influenced bythe spring. The rod is shown by the figures 18 in Figs. 4 and '5 Plate 2. The spring4 is shown by the figures 20 in Figs. 4 and 5 Plate 2.

A button or right-angled turning plate 17, Fig. 4, of metal is hung on a pin in the top piece of the main frame, one'arm of said plate extending upward where it is attached to the left end of the rodl 18 by a pin, the other arm extending horiontally to the left. The end of the rod is halved out to admit the arm of the button or right-angled plate17 close to the top piece of the main frame.

On a level with the shaft 9 a short groove is cut in t-he back top piece of the main frame. A metal plate is placed on the inner side of the back top piece of the main frame with its right lower end resting on'the horizontal arm of the metal button 17 and its left end extending over the groove just described, through it a horizontal slit is cut. At its right end the said slit is extended upward a pin l; inch long and inch square is fastened to the inner side of the back top piece of the main frame so as to hold the plate by the extended part of the slit. while the plate occupies the position in which it is above described, shown bythe figures 16 in Fig. 4 of Plate 2.

A metal shaft No. 12 is set horizontally in the front and back top pieces of the Inain frame on ai level with the shaft 9 with its front end inserted 471- inches from the girth 30 and its back end passing through the plate 16 and into the groove back of the said plate 16, shown by the figures 12 in Figs. 3 and 5 of Plate 2. A Inet-al bevel cog wheel is fastened on the said shaft 12 with the cogs pointed in front and meshing with the cogs of the metal bevel cogV wheel l0 shown by figure 13 in Figs. 3 and 5 of Plate2.

On the center -of the right top end piece of the main frame a concave metal rolling pulley is placed shown by the figures 15 in Fig. 5 Plate 2.

A small cord 14 is fastened by one end to the shaft 12 near the back end and extended over the pulley 15 and the other end fastened to a hook on the under side of the right main piece of the carriage fw, shown by the figures 14 in Figs. 3 and 5 of Plate 2.

A small iron pin is fastened o-n the under side of the carriage w so near the front side that when the carriage is moving it will pass close tothe inside of the front top piece of the main frame and in such position that it will strike and move the pin 26 when the carriage has arrived to the extreme left point of its travel. A similar pin is placed under the-carriage so near its right back corner that when the carriage moves it will pass close to the inner side of the back top piece of the main frame. The latter pin is` shown by the figures 28 in Fig. 4 Plate 2. A pin 27 is placed near the left back corner of the carriage underneath in such a position that. when the carriage has reached its extreme left point of travel the pin will pass thel shaft 12 as far to the left as it will go said pin being shown by figures 27 in Fig. 4 Plate 2. A metal clasp 19 is so constructed that it may at pleasure be screwed upon any part of the rod 18 to fix the distance torwhich the carriage shall move to the right7 shown by the figures 19 in Figs. 4 and 5 of Plate 2.

While the carriage w is running through to the left andthe saw and the smoothing wheel are performing their work the clamps m are closed upon the screw rod o-the right end of the lever 2 is elevated, the post 23 is raised, the rod 24 by the action of the spring 25 is pushed to the right into the mortise near the upper end o-f the post 23 by which the lever 2 is kept in its position7 the post 4 is depressed, the button 5 pushing against the rod 11 the shaft 9 with the band wheel 8 and the bevel cog wheel 10 are pushed as far to the left as they will go, the pin described as resting in the extended part of the slitin Plate 16 is resting in the horizontal part of said slit, the plate 16 and the back end of the shaft 12 are slipped to the right as far as the groove under said plate will allow them to go. The rod 18 by the action of the spring 20 is pushed as far as it will go to the left and the bevel cog wheels 10 and 13 are so far apart that they do not mesh together.

The carriage moves forward and when about 2 inches from its greatest point of travel to the left of the pin 27 (a stiff spring of the same shape may answer a better purpose) comes in contact with the back end of the shaft 12 and moves it as far as it will go to the left the plate 16 slips along with it until the extended part of the slit falls upon the pin letting the lower right edge of the plate 16 down upon the horizontal arm of the button 17 putting the plate 16 and the back end of the shaft 12 in a firm position. The pin under the left front side of the carriage comes in contact with the pin 26 drawing it and the rod 24 to which it is attached to the left until the right end of the rod 24 is drawn out of the mortise in the upper end of post 23 the right end of the lever 2 falls by its weight, its left end rises drawing the upper arm of the button 5 to the right by which the rod 11 t-he shaft 9 the band wheel 8 and the cog wheel 10 are drawn as far to the right as they will go putting the cog wheels 10 and 13 in mesh; the post 4 rises and pushes up the front end of the arms J so as to throw the timber on which the saw has been at work far out of the way of the saw. At the same moment with the fall of the right end of the lever 2 the spring y comes in contact with the upper arm of the button 3 pushing the shoulder of the spring clear of the lower leg of the clamps the spring 29 instantly opens the clamps m setting them free from the screw rod fu and the carriage i0 stops. The propelling power of the machine being continued without abatement and the cog wheels 10 and 13 being in mesh the cog wheel 13 and the shaft 12 are set in motion rollingA to the right, the shaft 12 takes in the length of its circumference of the cord 14 at each revolution, the cord passing over the pulley 15and havingits other end attached to the carriage w shortens by this means the carriage fw is rapidly drawn back until the pin under the right back end of the carriage comes in contact with the metal clasp 19 stationed on the rod 13 to bound the backward motion of the carriage w. The pin pressing against the clasp 19 moves the rod 18 to the right by which the horizontal arm` of the button 17 is pressed upward against the right lower edge of the plate 16 pushing it up until the pin passes out into the horizontal part of the slit in plate 16, the pressure of the cord 14 on the shaft 12 drawing the whole weight of the carriage fw instantly draws the shaft 12 and the plate 16 to the right throwing cog wheel 13 out of mesh and then the backward motion of the carriage necessarily stops.

No further preparation is necessary in order to produce the forward motion of the carriage except to close the clamps o@ upon the screw rod o and raise the right end of the lever 2 by the hand.

The arms J2 may be in the same straight line wit-h the arms J, or they may radiate from the center on which they vibrate at any required angle, so as to have the relative position therewith required for producing the intended. eifect.

qWhat I claim as my invention and which I desire to secure by Letters Patent is 1. Arranging the pattern on one set of arms of a tilting or vibrating frame and the article to be turned or formed on another set vibrating on the same center and with them, as herein described, the gearing for communicating motion to the pattern and mandrel being arranged at one end of the tilting or vibrating frame, substantially as herein described.

2. I also claim arranging the smoothing wheel t, and small pattern or guide wheel u on dierent sets of arms vibrating together and on the same center attached to the frame of, and traveling with the reducing and main pattern wheels7 as described, and this arrangement of the small smoothing and pattern wheels I claim in combination with the arrangement of the pattern and article to be formed as above described.

EDWIN TUCKER.

Witnesses:

WM. P. ELLIOT, ALBERT E. JOHNSON, 

